1. The fundamental reason for iReal's existence is as an educational aid for musicians who want to practice playing their instruments.

2. It's a misconception to think iReal plays the same each time. Actually it's programmed to more closely simulate a live rhythm section by producing slight variations of chord voicings, basslines and drum patterns during playback.

3. While composing and previewing charts with iReal OSX is, in my opinion, very VERY easy, "folks like me who don't know chords, aren't trying to learn to play an instrument, and ... don't like to click a lot" may not find that it suits their specific requirements.